Distance modulus comparisons of the two local calibration samples. Left plot: comparison between directly measured SBF distances (μ_SBF, given in Table 1) for the SBF sample, with the SNe distances estimated using the SBF calibration of the cosmological redshift-cut sample of 96 SNe as described in Sect. 3. Right plot: similar comparison for the SH0ES sample, comparing the measured Cepheid distances (from R16) with the distances estimated using the Cepheid calibration of the cosmological redshift-cut sample. In both cases we find a good one-to-one agreement.